Fetal HeartHeart Rate, FetalHeartFetal MonitoringCardiotocographyMyocardiumHeart RateUltrasonography, PrenatalHeart Defects, CongenitalPregnancyEchocardiography, Four-DimensionalFetal MovementGestational AgeFetal DiseasesFetal DistressFetal HypoxiaMyocytes, CardiacUmbilical ArteriesHeart FailureHeart DiseasesFetusHeart TransplantationMyocarditisHeart BlockCanrenoic AcidPregnancy Trimester, SecondEchocardiography, Three-DimensionalChagas CardiomyopathyMagnetocardiographyMyocardial ContractionUltrasonography, DopplerPregnancy Trimester, ThirdHeart ValvesPregnancy Trimester, FirstLabor, ObstetricEchocardiographyCardiac VolumeHeart AtriaCardiomegalyCardiomyopathy, DilatedBradycardiaTissue EngineeringPregnancy OutcomeFetal DevelopmentHeart InjuriesAbortion, ThreatenedMyocardial IschemiaHeart VentriclesCardiomyopathiesRats, Sprague-DawleyPrenatal DiagnosisCardiotonic AgentsMaternal-Fetal ExchangeRNA, MessengerSheepBlood Flow VelocityApgar ScoreTrypanosoma cruziTime FactorsAnimals, NewbornRats, WistarEnterovirus B, HumanEchocardiography, Doppler, ColorFetal Growth RetardationRheumatic Heart DiseaseProspective StudiesMyocardial Reperfusion InjuryCoxsackievirus InfectionsHemodynamicsInfant, NewbornPerinatologyCrown-Rump LengthDisease Models, AnimalMyocardial InfarctionElectronics, MedicalEpicardial MappingHeart SeptumPregnancy ComplicationsAnalgesia, ObstetricalPregnancy, High-RiskPlacental CirculationOrgan SpecificityReproducibility of ResultsMitochondria, HeartAnesthesia, ObstetricalCells, CulturedCalsequestrinMolecular Sequence DataElectrophysiological ProcessesHeart AuscultationTocolytic AgentsHeart Arrest, InducedImmunohistochemistryHeart Function TestsUmbilical CordChagas DiseasePerfusionSheep, DomesticCesarean SectionDown Syndrome